Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 12, 2005. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 835 | N18 | E57 | 04 | 0220 | Beta | Dec 17, 2005 | Dec 24, 2005 | Jan 7, 2006 |
| № 834 | S07 | E53 | 03 | 0030 | Beta | Dec 17, 2005 | Dec 24, 2005 | Jan 6, 2006 |
| № 833 | S16 | W76 | 03 | 0050 | Beta | Dec 7, 2005 | Dec 14, 2005 | Dec 28, 2005 |
| № 830 | N12 | W39 | 01 | 0040 | Alpha | Dec 10, 2005 | Dec 17, 2005 | Dec 30, 2005 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1976 to December 2005. The gray background is the average SSN index.
